| 摘要 |
<p>PURPOSE:To prevent the degradation of tape running capacity by constituting a tape running system of plural rotating roll members of which adjacent members are different in outside diameter. CONSTITUTION:In the tape running system, rotating roll posts 31 and 32, a supply roll 39, and limiter roll posts 41 and 42 are constituted as rotating rolls, and the rotating roll post 31 and the limiter roll post 41 are rotating rolls having the same outside diameter, and the rotating roll post 32 is the rotating roll which has the outside diameter equal to that of the limiter roll post 42 but different from that of the rotating roll post 31. The rotating roll of the supply roll 39 consists of a metal, and the inertia is increased to contribute to reduction of jitter. Since adjacent rotating rolls out of rotating rolls constituting the tape running system are different in outside diameter in this manner and the frequency where the sped variance component of the tape is generated is dispersed to reduce the weight of the speed variance component, the degradation of tape running capacity is prevented.</p> |
